• Title/Summary/Keyword: reliability factors

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A Study on the Development of Service Quality Scale in Traditional Market for Big Data Analysis

  • HWANG, Moon-Young
    • Korean Journal of Artificial Intelligence
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    • v.7 no.1
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    • pp.23-59
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    • 2019
  • The purpose of this study is to develop a measure of service quality in the traditional market by examining previous research on the service quality of the traditional market studied so far. After defining basic concepts through definition of traditional market and existing studies, 5 categories of configuration items for SERVQUAL measurement in traditional market were made up based on existing researches related to definition of service quality and service quality of traditional market. A survey was conducted on the items that fit the intention of this study and various statistical analyzes were conducted. Statistical analysis was performed using SPSS 22.0 and AMOS 22.0. The reliability of the items was measured by the reliability test, and the predictability and accuracy of the items were examined. The validity of the measured variables was verified through confirmatory factor analysis. Reliability, empathy, responsiveness, certainty, and tangibility were the most important factors in this study. Responsiveness factors include communication, time reduction, real time, promptness. Assurance factors include the assurance of delivery, prompt answers, product knowledge items. Tangibility factors include, convenient device systems, location information, presence as a fact, and as a result, the latest modern items are adopted. The quality of service in the traditional market developed in this study was found to be good in reliability and validity test. Confirmatory factor analysis result using structural equation model also met the conformity index standard. If service satisfaction is measured based on this research, basic data can be presented to policy makers who implement policies on traditional markets to make the right decisions. In addition, it will be able to provide traditional market operators with operational strategy and marketing data. In the future, based on the traditional market service quality scale developed in this study, it is necessary to grasp the factors to be continuously managed to improve the service quality of the traditional market, user satisfaction, and intention to use.

The Effects of Customer Expectations & Satisfaction on Customer Loyalty in Restaurants (외식업체 고객의 서비스 품질 기대도/만족도가 고객 충성도에 미치는 영향)

  • 양일선;신서영;김혜영
    • Korean Journal of Community Nutrition
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    • v.5 no.2
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    • pp.225-235
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    • 2000
  • Service quality has become an important factor to meet customer satisfaction in the food service industry where competition is getting severe. Organizations are focused upon strengthening customer loyalty through customer satisfaction. Therefore, this study, taking customers as subjects, is intended to analyze factors affecting customer loyalty, on the basis of service quality satisfaction. In doing. so, the analysis has been done with 232 customers who are purchasing service from the food services industry, for general information, and service quality expectation, service quality satisfaction and overall satisfaction. The results of the study are as below. 1) From a factor analysis, the service quality expectation level of customer has been categorized into 4 factors, which are named General ′General management ′, ′Food′, ′Reliability′and ′Reputation′. 2) From the factor analysis, the service quality satisfaction level of customer has been categorized into 6 factors, which are named ′Employee attitude′, ′Food′, ′Reliability′, ′Atmosphere′, ′Reputation′ and ′Price′. 3) After classifying customers into 3 groups according to two criteria-"will buy the service again" and "will suggest to others", a comparison has been done for the service quality expectation dimension of customers by each customer group. The result shows that the group having both the "will buy the service again" and "will buy the service again "and "will suggest to others" criteria, that is, with higher customer loyalty, tend to have higher point than other group in factors of ′Food′, ′Reliability′, ′Reputation′(p〈.05). 4) As per the dimension of customer\`s service quality satisfaction level, factors like ′Employee attitude′, ′Food′, ′Reliability′, ′Atmosphere′, ′Reputation′, and ′Price′have shown differences according to each loyalty group(P〈.001). 5) Customers′overall satisfaction level according to each customer loyalty group has been found to be more important for the group having a higher loyalty level(p〈.001) 6) From the discriminant analysis with employing judging variables, such as the customer′s service quality expectation level, service quality satisfaction level and general satisfaction level, customer loyalty groups have been identified as accurately as 68.9% of the explanatory power.

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Validity and Reliability of the Perceived Elderly Stigma Scale and the Relationships between the Stigma and Demographic Factors (지각된 노인 낙인 척도의 타당도 검증 및 인구통계학적 특징에 따른 낙인 인식)

  • An, Soontae;Kang, Hannah;Chung, Soondool
    • 한국노년학
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    • v.38 no.1
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    • pp.203-223
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    • 2018
  • This study examined the validity and the reliability of the perceived elderly stigma scale. Moreover, we investigated the relationships between the perceived elderly stigma and demographic factors (age, gender, education, and income). The initial scale consisted of 5 factors (ability, personality, appearance, authoritarian dependency, and child-obsession) and 28 items. In order to test the validity and the reliability of the scale, this study conducted a survey with 693 adults aged 18 to 65. Based on the confirmatory factor analysis (CFA), the scale was modified to 5 factors (ability, personality, appearance, authoritarian dependency, and child-obsession) and 15 items and its convergent validity and discriminant validity were confirmed. In terms of the relationships between the perceived elderly stigma and demographic factors, age had a negative relationship with the "ability" stigma, and education was a negatively associated with the "appearance" stigma.

Resistance Factors for Drilled Shafts Embedded in Weathered Rock (풍화암에 근입된 현장타설말뚝의 저항계수 산정)

  • Yoon, Hong-Jun;Jung, Sung-Jun;Kim, Myoung-Mo
    • Journal of the Korean Geotechnical Society
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    • v.23 no.8
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    • pp.107-116
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    • 2007
  • Load and Resistance Factor Design (LRFD) method is being used increasingly in geotechnical design practice worldwide, and is expected to completely replace the current Allowable Stress Design (ASD) method in the near future. LRFD has advantages over ASD in that it allows the design of superstructures and substructures at a consistent reliable level by quantification of failure probability based on reliability analysis. At present, resistance factors for cast-in-place piles embedded in rocks are determined by AASHTO only for the intact rock conditions. In Korea, however, most of the bedrocks in which piles are embedded are heavily weathered. Thus, this study will try to determine the resistance factors of heavily weathered rocks (so-called intermediate goo-materials). To this aim, reliability analysis was carried out to evaluate the resistance factors of cast-in-place piles embedded in intermediate geo-materials in Korea. Pile load test data of 21 cast-in-place piles of 4 construction sites were used for the analysis. Depending on the method which calculates the pile capacities, the resulting resistance factors ranged between 0.1 and 0.6.

Data Transition Research to Derive Shape Factor in Analyzing Factors -Centering on the body shape of males in twenties- (요인분석시 형태요인을 도출시키기 위한 자료 변환 연구 - 20대 남성 체형을 중심으로 -)

  • 석혜정;김인숙
    • Journal of the Korean Home Economics Association
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    • v.40 no.2
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    • pp.67-86
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    • 2002
  • The purpose of this research is to offer a method to derive the body shapes and pose factors with resets from analyzing factors by using the measurement values of human body. 297 male subjects in their twenties participated in this study. 54 anthropometric and 35 photographic measurements were taken from each subject. Data is the several typical items selected among items and you have to make an index value by using these typical items and convert it. The index has high correlation with each item, is easy to be measured and is to be used after selecting an important item in designing prototype. With results of analyzing reliability level by each item, correlation and items that factor loading is low, the item that the correlation is high is to be removed within the range that maintains the reliability level. Five factors of the front part and seven factors of the profile came to be derived from this kind of process.

The Risk Factors Analysis of Adolescent Suicide due to Depression Experience (우울경험에 따른 청소년들의 자살 시도 위험 요인 분석)

  • Kwon, Young Mo;Kim, So Youn;Baek, Jong Il
    • Journal of Applied Reliability
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    • v.15 no.2
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    • pp.76-83
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    • 2015
  • This study is implemented to find out the risk factors of adolescent suicide due to depression experiences and the factors that have effect on adolescent suicide attempt. Also it tries to figure out that if hospital treatment is enforced after a suicide attempt and the importance of prevention and therapy for adolescent suicide attempt. To analyze, used SPSS 22.0 and raw data made by online survey for adolescent health status is used. The factors effect on suicide attempt of adolescents who have had depression experience and who have not appear differently and hospital treatment is not being done well after attempting suicide. In conclusion, this study tries to show the factors that affect suicide attempts in adolescents, and to propose basis for the measures that can reduce suicide attempts in adolescents.

Validation of the Revised Class Play Scale for the Assessment of the Quality of Peer Relations (또래관계의 질 평가를 위한 RCP(Revised Class Play)의 타당화 연구)

  • Chun, Hui Young
    • Korean Journal of Child Studies
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    • v.20 no.2
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    • pp.3-19
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    • 1999
  • The Revised Classroom Play(RCP) scale was validated for Korean 4th grade students. 104 boys and 80 girls took the translated RCP. Test-retest reliability was established with 41 children after 2 months, and test of criterion-related validation was established by the Social Behavior Scale administered to 71 children. All raw scores were standardized by classroom and sex to adjust for differences in the number of nominators and nominatees. The structure of the RCP resulted in 3 factors, 'sociability-disruptive' and 'shy-isolated', with 28 items similar to the original RCP 3 factors. For criterion-related validity, the correlations between the 3 factors of the RCP and the 3 factors of the Social Behavior Scale were positive. For internal consistencies, Cronbach's ${\alpha}$ of the RCP factors ranged from .77 to .94. Test-retest reliability coefficients ranged from .33 to .51. Analyses of variance revealed good item discrepancies for all 28 items. These results confirm the RCP as a valid and reliable measure of the quality of peer relations.

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Recent Progress in Pb-free Solders and Soldering Technology: Fundamentals, Reliability Issues and Applications

  • Kang Sung Kwon
    • Proceedings of the International Microelectronics And Packaging Society Conference
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    • 2004.09a
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    • pp.1-26
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    • 2004
  • The implementation of Pb-free solder technology is making good progress in electronic industry. Further understanding on fundamental issues on Pb-free solders/processes is required to reduce reliability risk factors of Pb-free solder joints. Several reliability issues including thermal fatigue, impact reliability, IMC growth, spalling, void formation are reviewed for Pb-free solder joints. Several applications of Pb-free technology are discussed, such as Pb-free, CBGA, CuCGA, flip chips, and wafer bumping by IMS.

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Analysis of Proportional Hazards Model for a Maintained System

  • Jeong, Hai-Sung
    • Proceedings of the Korean Reliability Society Conference
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    • 2002.06a
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    • pp.415-415
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    • 2002
  • Proportional hazards model can be used to develop a realistic approach to determine the performance of a system. The proportional hazards model is typically applied for a group of equipments to assess the importance of factors that may influence the reliability of a system. In this paper we considered the interarrival times of a maintained system for the analysis of reliability, maintainability and availability. In order to demonstrate the proposed approach, an example is presented.

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Target Reliability Indices of Static Design Methods for Driven Steel Pipe Piles in Korea (국내 항타강관말뚝 설계법의 목표 신뢰도지수)

  • Kwak, Kiseok;Huh, Jungwon;Kim, Kyung Jun;Park, Jae Hyun;Lee, Juhyung
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.1C
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    • pp.19-29
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    • 2008
  • As a part of study to develop LRFD (Load and Resistance Factor Design) codes for foundation structures in Korea, reliability analyses for driven steel pipe piles are performed and the target reliability indices are selected carefully. The 58 data sets of static load tests and soil property tests conducted in the whole domestic area were collected and analyzed to determine the representative bearing capacities of the piles. The static bearing capacity formula and the Meyerhof method using N values are applied to calculate the expected design bearing capacity of the piles. The resistance bias factors were evaluated for the two static design methods by comparing the representative bearing capacities with the design values. Reliability analysis was performed by two types of advanced methods: First Order Reliability Method (FORM), and Monte Carlo Simulation (MCS) method using resistance bias factor statistics. The static bearing capacity formula exhibited relatively small variation, whereas the Meyerhof method showed relatively high inherent conservatism in the resistance bias factors. Reliability indices for safety factors in the range of 3 to 5 were evaluated respectively as 1.50~2.89 and 1.61~2.72 for both of the static bearing capacity formula and the Meyerhof method. The target reliability indices are selected as 2.0 and 2.33 for group pile case and 2.5 for single pile case, based on the reliability level of the current design practice and considering redundancy of pile group, acceptable risk level, construction quality control, and significance of individual structure.